320010133 has 4 divisors (see below), whose sum is σ = 320451040. Its totient is φ = 319569228.

The previous prime is 320010127. The next prime is 320010167. The reversal of 320010133 is 331010023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331010023 = 71 ⋅4662113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320010133 is a prime.

It is a super-3 number, since 3×320010133³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320010233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219363 + ... + 220816.

It is an arithmetic number, because the mean of its divisors is an integer number (80112760).

Almost surely, 2^320010133 is an apocalyptic number.

It is an amenable number.

320010133 is a deficient number, since it is larger than the sum of its proper divisors (440907).

320010133 is an equidigital number, since it uses as much as digits as its factorization.

320010133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440906.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 320010133 is about 17888.8270437164. The cubic root of 320010133 is about 683.9975982554.

Adding to 320010133 its reverse (331010023), we get a palindrome (651020156).

The spelling of 320010133 in words is "three hundred twenty million, ten thousand, one hundred thirty-three".